Winter is hard on water heaters. The water coming into your home gets much colder from late November through February, so your heater has to run longer to bring it up to temperature. Add a houseful of holiday guests taking showers back to back, and a heater that limped through the fall can quit on the coldest morning of the year.

The good news: most water heaters give some warning first. Here are six signs yours may not make it through the winter, what you can check yourself and when to call a plumber.

1. It's 10 Years Old or More

Age isn't a problem by itself, but it changes the math. Many tank water heaters start having problems somewhere around the 10-year mark, and sooner with hard well water or high water pressure.

To find the age, look at the label on the side of the tank. The manufacture date is often printed there or built into the serial number. If you can't make sense of it, snap a photo of the label and we can help.

2. Rumbling, Popping or Banging

Minerals in your water settle to the bottom of the tank as sediment. When the burner or element heats the water trapped under that layer, you hear popping and rumbling. Sediment makes the heater work harder, slows recovery and can shorten the life of the tank. It's often worse in homes on private wells, where the water tends to be harder.

3. Rusty, Cloudy or Smelly Hot Water

Rust-colored hot water can mean the inside of the tank is starting to corrode. If only the hot water looks rusty, the tank is the likely source. A rotten-egg smell in the hot water often comes from a reaction between the water and the tank's anode rod, which is common with well water. Both are worth a look before winter.

4. Water Around the Base

Check the floor under and around your water heater. A small puddle could come from a loose fitting, a leaking drain valve or the temperature and pressure (T&P) relief valve. Those can often be repaired.

Water coming from the tank itself is different. Once the tank is rusting through, it can't be fixed, and a slow drip can turn into a flood with little warning. Many water heaters here sit in basements next to finished space, so don't wait on this one.

5. Hot Water Runs Out Faster

If showers go lukewarm sooner than they used to, your heater is losing ground. Common causes include heavy sediment, a failed heating element on an electric tank or a broken dip tube, the pipe that carries cold water to the bottom of the tank. These problems get more noticeable as the incoming water gets colder.

6. Pilot or Burner Trouble

On a gas or propane heater, a pilot that keeps going out, a burner that struggles to light or a lazy yellow flame all need attention. On an electric heater, a breaker that trips again and again is a warning sign. These problems tend to show up when the heater is working hardest, which is exactly when you need it most.

What You Can Check Now

A few quick, safe checks:

  • Look at the base and the floor for water, rust or white crusty buildup on the fittings.
  • Listen while it heats. Steady rumbling or popping means sediment.
  • Check the temperature setting. Around 120°F is a common recommended setting for most homes. Higher settings use more energy and raise the risk of scalding.
  • Clear the area. Keep boxes, laundry and anything that can burn away from a gas or propane water heater. Never store paint, gasoline or cleaning chemicals next to it.
  • Test your carbon monoxide alarms. A gas water heater vents combustion gases, so working CO alarms belong on every level of your home.

If your tank has never been flushed and it's more than a few years old, ask a plumber to do it. Drain valves that have sat untouched for years can leak or fail to close.

Repair or Replace?

If your tank is under about 8 years old and not leaking, a repair is often all you need. Elements, thermostats, gas valves, thermocouples and anode rods can all be replaced. If the tank is 10 years old or more, putting money into repairs is usually a losing bet. And a leaking tank always means replacement.

Replacing on your schedule, before it fails, gives you time to compare options instead of making a rushed choice on a cold morning. Learn more about our water heater repair and water heater installation and replacement services.

When to Call a Plumber Right Away

  • Water is pooling around the heater or coming from the tank.
  • The T&P valve is releasing water or steam. That valve opens when the temperature or pressure inside the tank gets too high.
  • You have no hot water and the pilot won't stay lit or the breaker keeps tripping.
  • You smell gas. Leave the home right away. Don't flip light switches or use your phone inside. Call your gas utility or 911 from outside.

Get Your Water Heater Ready for Winter

Seeing any of these signs? Call Benjamin Franklin Plumbing of Delaware or book online. We're The Punctual Plumber®: if we're late to your scheduled appointment, we pay you $5 a minute, up to $300. Our licensed plumbers (Ohio License #12313) repair and replace gas, electric, propane and tankless water heaters. With StraightForward Pricing®, you see and approve the price before work starts, and every job comes with our 100% satisfaction guarantee. We serve homeowners across Delaware and Union counties.